[mkgmap-dev] Problem Displaying Polygons with Extended Type codes

Mon Jul 4 09:50:09 BST 2011

Charlie, thanks for your response.

I have been doing a few controlled tests and I am now fairly sure that 
it is the GPSMap62s that will not display the 'extended' polygon codes.

What I did was to compile a map using the 'default' style with r1979 
together with a very simple TYP defining only 'leisure=playground [0x24 
resolution 24]' (at draw level 7). This displayed correctly.

Then I simply edited the 'polygons' file line to read 
'leisure=playground [0x10103 resolution 24]' and suitably changed the 
TYP. In this case the polygon was NOT displayed. In both cases I used 
only the minimal arguments in the mkgmap compile command line.

I will try to put a small GMAPSUPP.IMG online somewhere for others to 
confirm.

Conversely, it would be good if I could test a build that someone else 
has made using an extended polygon code.

Bill.

Charlie Ferrero wrote:
> On 29/06/2011 01:57, Bill Lancashire wrote:
>   
>> I have recently noticed that polygons assigned codes of the type 0x101xx
>> are not displayed on my Garmin 62s. However, if I open the compiled maps
>> in a package such as GPSMapEdit I can see that the features are indeed
>> compiled correctly in the maps.
>>
>> I am using version r1973
>> The polygons are correctly defined in a TYP file
>> If I redefine the polygons to alternative unused codes of type 0x2x or
>> 0x3x and also change the code in the TYP file then the polygons are
>> displayed correctly.
>>
>> It does not seem to matter what the Drawing Level is in the TYP file.
>> Non of the 0x101xx types are ever displayed.
>>
>> In the case of Polylines, I have used several codes of the types
>> 0x100xx, 0x101xx and 0x105xx and they are displayed correctly.
>>
>> I am really puzzled by this and would really appreciate any insight into
>> what is happening.
>>
>> At the lower drawing levels in the TYP file I have the following defined:
>>
>> Type *0x4b* [*Background (coverage)*], Drawing order: *1
>>
>> *Type *0x32* [*Sea*], Drawing order: *2 (Placeholder only)
>>
>> *Type *0x27* [*?*], Drawing order: *3 **(Placeholder only)
>>
>> *Then follows Drawing Level 4 with codes 0x02, 0x03 etc.
>>
>> Any ideas on this please?.
>>     
> Bill,
>
> If you can post a link to a small gmapsupp.img file (including your 
> TYP), we can try it on our own devices and see if this is a "feature" of 
> the GPSMap62s, or if there's something else wrong in your compile.
>
> Charlie
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>
>   
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